Cracking Analysis of Plain Concrete under Coupled Heat Transfer and Moisture Transport Processes
Publication: Journal of Structural Engineering
Volume 133, Issue 3
Abstract
A smeared cracking approach is developed in this paper to simulate the crack propagation in plain concrete caused by coupled heat transfer and moisture transport processes. The cracking state of each concrete element is described using an original concept—local relative crack density (LRCD). Furthermore, a numerical relationship between LRCD and the moisture transport property is proposed to consider the accelerating influence of crack propagation on moisture diffusion. Finally, a global relative crack density is suggested to denote the cracking state of the entire concrete structure, which may serve as an appropriate index to evaluate the overall deterioration level of the structure. A finite element-based computational methodology is developed to simulate the coupled thermohydrochemomechanical deterioration processes, and is expanded further to implement the simulation of crack propagation. The proposed method establishes a reasonable analytical basis for quantitative long-term durability assessment of concrete structures.
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Acknowledgments
This paper was prepared with the support of the U.S. Department of Energy, under Award No. DOEDE-FG01-03EW15336 to the Institute for Responsible Management, Consortium for Risk Evaluation with Stakeholder Participation II. However, any opinions, findings, conclusions, or recommendations expressed herein are those of the writers and do not necessarily reflect the views of the DOE or of IRM/CRESP II.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 133 • Issue 3 • March 2007
Pages: 400 - 410
Copyright
© 2007 ASCE.
History
Received: Apr 11, 2005
Accepted: May 25, 2006
Published online: Mar 1, 2007
Published in print: Mar 2007
Notes
Note. Associate Editor: Elisa D. Sotelino
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